Bird bath bowl



FIG. 1 is a perspective view of a bird bath bowl showing our new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is an enlarged view of the right side of FIG. 2; and,

FIG. 6 is a cross-sectional side view of said bird bath bowl shown in FIG. 3. 

The ornamental design for a bird bath bowl, as shown. 